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3 years ago

Someone plzzzz helppppppp idkk wat to do

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

5 0

Answer:

9x/4= -9

Mutiply by 4 for both sides.

4(9x/4) cross out 4 and 4, divide by 4 and then becomes 9x. (-9)(4)= -36

9x= -36

Divide by 9 for both sides

9x/9= -36/9

x= -4

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(3x-4y)^2-(3x-4y)(3x+4y)

zheka24 [161]

Answer:

$-24xy + 32y^2$

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

$(a + b)^2 = a^2 + 2ab + b^2$
$(a + b)(a - b) = a^2 - b^2$

<h3>Simplify</h3>

$(3x - 4y)^2 - (3x - 4y)(3x + 4y)$
$(9x^2-24xy+16y^2) - (9x^2 - 16y^2)$
$9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2$
$-24xy + 32y^2$

The simplified form is $-24xy + 32y^2$

6 0

1 year ago

A container has 12 and 3/4 cups of lemonade .asher gives each of his classmates 7/8 of a cup of lemonade . He gives away all of

Agata [3.3K]

Asher gave lemonade to 14 students

<em><u>Solution:</u></em>

Given that, A container has 12 and $\frac{3}{4}$ cups of lemonade

Asher gives each of his classmates $\frac{7}{8}$ of a cup of lemonade

To find: Number of classmates received the lemonade

From given question,

Total cups of lemonade = $12\frac{3}{4}$

$\rightarrow 12\frac{3}{4} = \frac{4 \times 12 + 3}{4} = \frac{51}{4}$

cups of lemonade received by each classmate = $\frac{7}{8}$

Thus, number of classmates received the lemonade can be found by dividing total cups of lemonade by cups of lemonade received by each classmate

$\rightarrow \frac{\frac{51}{4}}{\frac{7}{8}}=\frac{51}{4} \times \frac{8}{7}$

$\rightarrow 14.57$

Thus Asher gave lemonade to 14 students

3 0

3 years ago

PLEASE I NEED HELP!!! NO LINKS!!

9966 [12]

Answer:

(5)2

Step-by-step explanation:

As we know that the equation of circle with center at (h,k) ad radius r is given as-

(x−h)

+(y−k)

Given that the centre of circle is (1,4) and radius is 5.

Therefore the equation of circle is-

(x−1)

+(y−4)

=(5)

4 0

2 years ago

I need help with each one

pashok25 [27]

If you get the app photomath it will help you with math problems

7 0

3 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

WITCHER [35]

Answer:

65/2

Step-by-step explanation:

3 1/4= 13/4

13/4(10)=65/2

8 0

2 years ago

Read 2 more answers